Q: Will not play a CD in Yosemite and no error message - it just spins and ejects it

Hi norwestuser,

Welcome to the Support Communities!  Are you using an iMac, a MacBook or an external SuperDrive CD/DVD player?  The troubleshooting steps below provide general steps to take for all of these.  The first step is to determine if this is happening to a specific CD or any CD or DVD you insert into the drive.  Click on the link for more details.

Get help with the slot-loading SuperDrive on your Mac computer - Apple Support
http://support.apple.com/en-us/HT201788

Accepts discs but they don't mount or are automatically ejected

 

1. Make sure the drive is not placed upside down. The aluminum enclosure should be facing up as shown in section 1.
2. Check the disc's surface for scratches and dirt, since these things can prevent the disc from appearing on the desktop.
3. Connect the MacBook Air SuperDrive directly to the computer's USB port instead a USB hub.
4. Reset the System Management Controller (SMC).
5. Ensure your drive can read the specific type of disc being used. The System Profiler or System Information may provide additional information regarding what media your computer supports.
6. If the disc continues to not be recognized, contact Apple or an Apple Authorized Service Provider, or make an appointment with an Apple Retail Store.

I hope this information helps ....

- Judy